Medical drill bit mechanism
By designing collection and adjustment components into the medical drill bit, the problem of inconvenient bone debris removal during drill operation was solved, achieving automatic collection of bone debris and stability of the drill bit length, thereby improving surgical efficiency and safety.
Patent Information
- Application Number
- CN202423104671.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2034-12-17
AI Technical Summary
The bone debris generated during the use of existing medical drills is difficult to clean in a timely manner, resulting in cumbersome operation and increased physical exertion for doctors.
A medical drill bit mechanism was designed, equipped with a collection component and an adjustment component. The collection component enables timely absorption of bone debris through a connecting cover, a suction tube, and a filter cover, while the adjustment component ensures the stability of the drill bit length through a positioning screw.
It enables the automatic collection of bone debris during drill operation, reducing manual cleaning steps, improving operational efficiency, and reducing the physical exertion of doctors.
Smart Images

Figure CN223930201U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, specifically a medical drill bit mechanism. Background Technology
[0002] With the continuous advancement of global medical technology, the requirements for surgical tools are becoming increasingly stringent. Especially in the fields of minimally invasive surgery and precision medicine, medical drills, as one of the key surgical tools, directly affect surgical outcomes and patient well-being through their performance and technological level.
[0003] Medical drills are widely used in various fields such as orthopedic surgery, neurosurgery, ophthalmological surgery, and oral and dental surgery. Different surgical scenarios have different requirements for the performance, precision, and safety of drills.
[0004] When using a drill inside a patient's body, bone fragments produced by the drill will remain inside the patient's tissues. After the procedure is completed, other equipment is needed to clean them up, which is a rather cumbersome operation and will increase the doctor's physical exertion. Utility Model Content
[0005] The purpose of this invention is to provide a medical drill bit mechanism to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a medical drill bit mechanism, comprising a drill bit body, a collection assembly installed on the outside of the drill bit body, the collection assembly including a connecting cover fixedly sleeved on the top of the outer circumference of the drill bit body, a plurality of collection tubes fixedly connected to the bottom outer wall of the connecting cover, the plurality of collection tubes communicating with the connecting cover, the plurality of collection tubes respectively surrounding the interior of a plurality of material guide grooves of the drill bit body, a connecting ring rotatably connected to the top of the outer circumference of the connecting cover, and the connecting cover being able to completely close the opening at the top of the connecting cover, a plurality of suction tubes fixedly inserted into the top outer wall of the connecting ring, and a connector provided at one end of the top of each of the plurality of suction tubes.
[0007] As a further preferred embodiment of this technical solution, a filter cover is fixedly connected to the bottom outer wall of the connecting ring, and the filter cover can completely surround the through hole of the connecting ring.
[0008] This design allows the drill bit to collect bone fragments from the feed channel in a timely manner during operation, preventing these fragments from scattering into the tissue and eliminating the need for further collection. The connector at one end of the suction tube is inserted into the external air pump interface. Because the connecting ring and the connecting cover are rotatably connected, the connecting cover rotates synchronously with the drill body, while the connecting ring remains stationary due to the suction tube's constraint. This ensures continuous operation of the collection component. During operation, the generated debris enters the feed channel of the drill body. The external air pump, through the suction tube and connecting cover, creates suction in multiple collection tubes, drawing away the debris inside the feed channel. The debris then enters the connecting cover, where it is temporarily stored by the filter cover.
[0009] As a further preferred embodiment of this technical solution, the outer circumferential wall of the connecting cover is provided with a through hole, and the outer circumferential wall of the connecting cover is provided with two limiting grooves. The two limiting grooves are respectively located on both sides of the through hole, and the two limiting grooves are slidably inserted with the same sealing plate, and the sealing plate can completely seal the through hole.
[0010] As a further preferred embodiment of this technical solution, a slot is provided on the inner wall of the top of the drill bit body, a connecting rod is slidably inserted into the slot, and the same adjustment component is installed between the drill bit body and the connecting rod.
[0011] As a further preferred embodiment of this technical solution, the adjustment component includes a positioning screw threaded to the top of the outer circumference of the drill bit body. One end of the connecting rod has multiple positioning holes, which are vertically distributed. One end of the positioning screw can enter the multiple positioning holes.
[0012] Rotate the positioning screw to disengage it from the positioning hole. At this point, the drill bit body will no longer be restricted and can move up and down. After pulling it out a certain distance, turn the positioning screw knob again, and it will move along the drill bit body towards the connecting rod until it enters the corresponding positioning hole. During this process, the position of the drill bit body will be firmly fixed, ensuring that the overall length of the drill bit meets the requirements.
[0013] As a further preferred embodiment of this technical solution, the outer edges of the plurality of positioning holes are all provided with rounded corners.
[0014] As a further preferred embodiment of this technical solution, the suction tube is made of PVC steel wire tubing.
[0015] This utility model provides a medical drill bit mechanism, which has the following beneficial effects:
[0016] (1) By setting up a collection component, this utility model can collect the bone debris in the drill bit guide groove in time when the drill bit is working, which can prevent these debris from being scattered in the tissue and also save the process of collecting again. The connector of one end of the suction pipe is inserted into the external air pump interface. Since the connecting ring and the connecting cover are rotatably connected, the connecting cover rotates synchronously with the drill bit body, while the connecting ring does not rotate under the restriction of the suction pipe, so that the collection component can work continuously. When the drill bit is working, the debris generated enters the guide groove of the drill bit body. The external air pump generates suction through the suction pipe and the connecting cover, and the debris inside the guide groove is sucked away by the suction in time and then enters the connecting cover. Under the obstruction of the filter cover, it will only be temporarily stored inside the connecting cover.
[0017] (2) This utility model, by setting an adjustment component, rotates the positioning screw to disengage it from the positioning hole. At this time, the drill bit body will no longer be restricted and can move up and down. After pulling it outward a certain distance, the positioning screw knob is turned again, and it will move along the drill bit body towards the connecting rod until it enters the corresponding positioning hole. During this process, the position of the drill bit body will also be firmly fixed to ensure that the overall length of the drill bit meets the requirements. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall first-view structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the overall second-view structure of this utility model;
[0020] Figure 3 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle;
[0021] Figure 4 For the present utility model Figure 1 Enlarged structural diagram at point B;
[0022] In the diagram: 1. Drill bit body; 2. Connecting rod; 3. Collection assembly; 4. Adjustment assembly; 301. Connecting cover; 302. Connecting ring; 303. Collection tube; 304. Suction tube; 305. Filter cover; 306. Limiting groove; 307. Sealing plate; 308. Connector; 401. Slot; 402. Positioning screw; 403. Positioning hole. Detailed Implementation
[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0024] This utility model provides a technical solution: such as Figure 1 , Figure 2 and Figure 3 As shown, in this embodiment, a medical drill bit mechanism includes a drill bit body 1. A collection component 3 is installed on the outside of the drill bit body 1. The collection component 3 includes a connecting cover 301 fixedly sleeved on the top of the outer circumference of the drill bit body 1. Multiple collection tubes 303 are fixedly connected to the bottom outer wall of the connecting cover 301. The multiple collection tubes 303 are all connected to the connecting cover 301. The multiple collection tubes 303 are respectively surrounded inside multiple guide grooves of the drill bit body 1. A connecting ring 302 is rotatably connected to the top of the outer circumference of the connecting cover 301. The connecting cover 301 can completely close the opening at the top of the connecting cover 301. Multiple suction tubes 304 are fixedly inserted into the top outer wall of the connecting ring 302. A connector 308 is provided at one end of the top of each of the multiple suction tubes 304.
[0025] A filter cover 305 is fixedly connected to the bottom outer wall of the connecting ring 302, and the filter cover 305 can completely surround the through hole of the connecting ring 302.
[0026] The connecting cover 301 has a through hole on its outer circumference and two limiting grooves 306 on its outer circumference. The two limiting grooves 306 are located on both sides of the through hole. The two limiting grooves 306 are slidably inserted with the same sealing plate 307, and the sealing plate 307 can completely seal the through hole. After use, the sealing plate 307 is pushed upward, and it will move upward along the limiting groove 306. At this time, the hole on the outside of the connecting cover 301 will be exposed, which facilitates the cleaning of debris.
[0027] Insert the connector 308 at one end of the suction pipe 304 into the external air pump interface. Since the connecting ring 302 and the connecting cover 301 are rotatably connected, the connecting cover 301 rotates synchronously with the drill body 1, while the connecting ring 302 does not rotate under the restriction of the suction pipe 304, so that the collection component 3 can continue to work. When the drill bit is working, the generated debris enters the guide groove of the drill body 1. The external air pump generates suction through the suction pipe 304 and the connecting cover 301, causing multiple collection pipes 303 to generate suction. The debris inside the guide groove is sucked away by the suction in time and then enters the connecting cover 301. Due to the obstruction of the filter cover 305, it will only temporarily remain inside the connecting cover 301.
[0028] like Figure 1 and Figure 4 As shown, a slot 401 is provided on the inner wall of the top of the drill bit body 1, and a connecting rod 2 is slidably inserted into the slot 401. The same adjustment component 4 is installed between the drill bit body 1 and the connecting rod 2.
[0029] The adjustment component 4 includes a positioning screw 402 threaded to the top of the outer circumference of the drill bit body 1. One end of the connecting rod 2 has multiple positioning holes 403, which are vertically distributed. One end of the positioning screw 402 can enter the multiple positioning holes 403.
[0030] Rotate the positioning screw 402 to disengage it from the positioning hole. 403. At this point, the drill bit body 1 will no longer be restricted and can move up and down. After pulling it out a certain distance, turn the knob end of the positioning screw 402 again, and it will move along the drill bit body 1 towards the connecting rod 2 until it enters the corresponding positioning hole. 403. The position of the drill bit body 1 will also be firmly fixed, ensuring that the overall length of the drill bit meets the requirements for easy use.
[0031] like Figure 4 As shown, the outer edges of the multiple positioning holes 403 are rounded, making it easier to insert the positioning screw 402 into the positioning hole 403.
[0032] like Figure 1 and Figure 2 As shown, the suction tube 304 is made of PVC steel wire. When the suction tube 304 cannot be kept in a stretched state, the rotation of the drill bit 1 body may cause the suction tube 304 to wrap around the outside of the drill rig. The steel wire inside can ensure that the tube body will not collapse and reduce the suction.
[0033] This utility model provides a medical drill bit mechanism, the specific working principle of which is as follows:
[0034] When the device is working, after fixing the connecting rod 2 in the drilling rig, if a deeper hole needs to be drilled,
[0035] Rotate the positioning screw 402 to disengage it from the positioning hole. 403. At this point, the drill body 1 will no longer be restricted and can move up and down. After pulling it out a certain distance, turn the knob end of the positioning screw 402 again. It will move along the drill body 1 towards the connecting rod 2 until it enters the corresponding positioning hole. 403. In this position, the drill body 1 will be firmly fixed, ensuring that the overall length of the drill meets the requirements for easy use. Then, insert the connector 308 at one end of the suction pipe 304 into the external air pump interface. Since the connecting ring 302 and the connecting cover 301 are rotatably connected, while the connecting cover 301 rotates synchronously with the drill body 1, the connecting ring 302 will not rotate under the restriction of the suction pipe 304, allowing the collection component 3 to continue working. When the drill is working, the debris produced... Once inside the feed trough of the drill bit body 1, the external air pump generates suction through the suction pipe 304 and the connecting cover 301, causing multiple collection pipes 303 to generate suction. The debris inside the feed trough is then sucked away by the suction and enters the connecting cover 301. Due to the obstruction of the filter cover 305, it is only temporarily stored inside the connecting cover 301. After use, the sealing plate 307 is pushed upward, and it will move upward along the limiting groove 306. At this time, the holes on the outside of the connecting cover 301 will also be exposed, making it easier to clean the debris.
[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A medical drill bit mechanism, comprising a drill bit body (1), characterized in that: The drill bit body (1) is equipped with a collection assembly (3). The collection assembly (3) includes a connecting cover (301) fixedly sleeved on the top of the outer circumference of the drill bit body (1). Multiple collection tubes (303) are fixedly connected to the bottom outer wall of the connecting cover (301). The multiple collection tubes (303) are all connected to the connecting cover (301). The multiple collection tubes (303) are respectively surrounded inside the multiple guide grooves of the drill bit body (1). A connecting ring (302) is rotatably connected to the top of the outer circumference of the connecting cover (301). The connecting cover (301) can completely close the opening at the top of the connecting cover (301). Multiple suction tubes (304) are fixedly inserted into the top outer wall of the connecting ring (302). A connector (308) is provided at one end of the top of each of the multiple suction tubes (304).
2. The medical drill bit mechanism according to claim 1, characterized in that: A filter cover (305) is fixedly connected to the bottom outer wall of the connecting ring (302), and the filter cover (305) can completely surround the through hole of the connecting ring (302).
3. The medical drill bit mechanism according to claim 1, characterized in that: The connecting cover (301) has a through hole on its outer circumference. The connecting cover (301) has two limiting grooves (306) on its outer circumference. The two limiting grooves (306) are located on both sides of the through hole. The two limiting grooves (306) are slidably inserted with the same sealing plate (307), and the sealing plate (307) can completely seal the through hole.
4. A medical drill mechanism according to claim 1, characterized in that: The drill bit body (1) has a slot (401) on its top inner wall. A connecting rod (2) is slidably inserted into the slot (401). The same adjustment component (4) is installed between the drill bit body (1) and the connecting rod (2).
5. A medical drill mechanism according to claim 4, characterized in that: The adjustment component (4) includes a positioning screw (402) threaded to the top of the outer circumference of the drill bit body (1). One end of the connecting rod (2) is provided with multiple positioning holes (403), and the multiple positioning holes (403) are vertically distributed. One end of the positioning screw (402) can enter the multiple positioning holes (403).
6. A medical drill bit mechanism according to claim 5, characterized in that: The outer edges of the multiple positioning holes (403) are all rounded.
7. A medical drill bit mechanism according to claim 1, characterized in that: The suction tube (304) is made of PVC steel wire tubing.